15 results
How to Evaluate an Abnormal APTT
Step 1: Is the PT or APTT Artifactually Prolonged?
Step 2: Is
to Evaluate an Abnormal ... Artifactually Prolonged ... identify the cause of Prolonged ... ISNeducation #Abnormal ... #APTT #prolonged
Algorithm for Investigation of Abnormal Coagulation Tests
- Prolonged PT
- Prolonged aPTT and Prolonged PT
- Prolonged aPTT

Dr.
Investigation of Abnormal ... aPTT and Prolonged ... aPTT Dr. ... #Coagulation #Abnormal ... #APTT #Laboratory
Prolonged APTT - Diagnostic Algorithm

#Prolonged #APTT #PTT #abnormal #Diagnosis #Algorithm #hematology
Prolonged APTT - ... Algorithm #Prolonged ... #APTT #PTT #abnormal
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Causes of Abnormal ... PT and/or aPTT ... aPTT) 3. ... Jcortesizaguirr #Abnormal ... #PT #aPTT #Prolonged
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
PTTProlonged ... PTTProlonged ... PTTProlonged ... PTT, Normal PT ... PTT, Normal PT
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
PT and aPTT If ... the PT and the aPTT ... are both prolonged ... amyloidosis #Abnormal ... #PT #aPTT #Prolonged
Von Willebrand Disease - Most common inherited bleeding disorder 
Clinical 
 • Easy bruising 
 •
bleeding • Prolonged ... Laboratory • Normal ... type 2B) • Normal ... PT/INR • Normal ... aPTT (prolonged
Bleeding and Bruising - Disorders of Hemostasis - Differential Diagnosis Framework

== Quantitative or Qualitative defect in
PT/NORMAL PTT: ... PT/ABNORMAL PTT ... PT/NORMAL PTT: ... the PT remains prolonged ... PT/ABNORMAL PTT
Hemophilia - Diagnosis and Management
Diagnosis:
 • Consistent bleeding history (unless screening for disease in family members
established disease) • aPTT ... is prolonged, but ... mixing study (aPTT ... may be normal in ... antigen (vWF:Ag) are normal
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
Thrombocytopenia • Prolonged ... PT/PTT • Low ... Thrombocytopenia - Normal ... INR < 2.3 - APTT ... < 1.5 x normal